Looking for some advice on the best way to safely store cards. I have a fairly large collection of close to 4,000 cards from the late '80s through present day.
I keep all my rookies (even the ones I've never heard of) in sleeves and penny top-loaders. I have one large and three small albums which contain most of my semi-common/ decent inserts. I have most of my autos, GU, and graded cards in either screwtops or sealed cases.
But what about the 3,000+ base cards of back-up outfielders and middle relief guys from the Devil Rays in 1999?!?!?

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Looking for A&G sized minis and Topps Olympic relics, pins, etc. for my daughter and refractors for my son Never trust a man who dresses up like a hot dog.Don't drink and break. It's the law.

I have (ashamedly) used several shoeboxes, but most of the cards in them are newer and are still in their wrappers. I do have one large heavy-duty cardboard box about 20x20, with four or five rows in it. Holds quite a few cards, but I received it as a gift several years ago, and don't know where to find 2-3 more...Does that sound like this monster box you speak of?